<template>
  <div class="wrapper" ref="wrapper">
    <div class="content">
      <slot></slot>
    </div>
  </div>
</template>

<script>
  import BScroll from "better-scroll";

  export default {
    name: "Scroll",
    data(){
      return{
        scroll: null
      }
    },
    props:{
      probeType:{
        type: Number,
        default: 0
      },
      pullUpLoad:{
        type:Boolean,
        default: false
      }
    },
    mounted(){
      this.scroll = new BScroll(this.$refs.wrapper,{
        observeDOM: true,//用于PC端鼠标滑动
        click: true,
        mouseWheel: true,
        probeType: this.probeType,
        pullUpLoad: this.pullUpLoad
      })
      if(this.probeType === 2 || this.probeType === 3){
        this.scroll.on('scroll',position => {
          this.$emit('scroll',position);
        })
      }
      if(this.pullUpLoad){
       this.scroll.on('pullingUp', () => {
         this.$emit('pullingUp')
       })
      }
    },
    methods:{
      scrollTo(x,y,time = 300){
        this.scroll && this.scroll.scrollTo(x,y,time);
      },
      refresh() {
        this.scroll && this.scroll.refresh();
      },
      finishPullUp(){
        this.scroll && this.scroll.finishPullUp();
      },
      getScrollY(){
        return this.scroll ? this.scroll.y : 0;
      }
    },
  }
</script>

<style scoped>

</style>
